JPH062894U - Speaker cord fixing structure - Google Patents

Abstract

(57) [Abstract] [Purpose] To facilitate the manufacturing of the fixing structure of the cord to be attached to the speaker and to achieve cost reduction. [Structure] A frame 1 partially cut away is provided, and a tongue piece 8 which extends linearly from the substantially central portion of one side 7a to the other side 7b and locks / fixes a cord 9 is provided in the cutout 7.
Is formed, the tip of the tongue piece 8 reaches almost the center of the side of the cutout 7, and the side 7c of the cutout 7 is tapered so as to expand from the side 7a to the side 7b. It was formed. Further, the tongue piece 8 is provided at the substantially central portion of the side edge 7c.
The protrusion 7d protruding toward the side is formed.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a speaker, which is an audio device, and more specifically, to a structure for fixing a cord which is provided on a speaker frame and is connected to a terminal plate connected to a voice coil.

[0002]

[Prior art]

 Some of the speakers for in-vehicle use have a dedicated cord that is pulled out in advance in order to simplify the wiring process when they are mounted on the vehicle. In addition, the cord may be grasped and lifted during transportation or installation work. Conventionally, as a cord fixing structure of this type, there is one shown in FIG. That is, a tongue piece 8'is formed by cutting out a part of the speaker frame 1 made of a steel plate, and the tongue piece 8'is erected, and a cord 9 is inserted inside the tongue piece 8 ', as shown in FIG. And, after that, the tongue piece 8'which had been erected was pushed in and the cord 9 was sandwiched and fixed.

[0003]

[Problems to be solved by the device]

 However, in the above-mentioned conventional example, when manufacturing the frame 1 of the loudspeaker, it is necessary to cut out a part of the frame 1 and then start up the tongue piece 8 ′, so that the die cost and unit price are high. There was a problem of becoming. Further, in the speaker manufacturing process in which the magnetic circuit, the voice coil, the diaphragm, etc. are incorporated in the frame 1, it is necessary to push the raised tongue piece 8'formed on the frame 1, the manufacturing is complicated, and the manufacturing cost is generally high. There was a problem such as.

The present invention has been proposed in view of the above, and an object thereof is to provide a cord fixing structure for a speaker, which is easy to manufacture and can reduce the cost.

[0005]

[Means for Solving the Problems]

 This invention is provided with a frame 1 part of which is cut away, and the cutout 7 linearly extends from the substantially central portion of one side 7a thereof toward the other side 7b thereof and locks and fixes the cord 9. 8 is formed, the tip of the tongue piece 8 reaches almost the center of the side of the notch 7, and the side 7c of the notch 7 extends from the side 7a to the side 7b. The taper is formed to achieve the above object. In addition, a protrusion 7d that protrudes toward the tongue piece 8 side is formed at substantially the center of the side edge 7c.

[0006]

[Action]

 In the present invention, since the tongue piece 8 is substantially linear, only a part of the frame 1 needs to be cut out, and accordingly, the manufacturing is easy. In addition, the width on the root side of the hole portion of the notch 7 formed on both sides of the tongue piece 8 becomes narrow because the side 7c of the notch 7 is tapered, and when the cord 9 moves to the root side, The 9 bites so that it can be firmly fixed.

[0007]

【Example】

 1 is a rear view of a speaker according to a first embodiment of the present invention, and FIG. 2 is a side view thereof. In these figures, 1 is a frame, 2 is its window, 3 is a magnetic circuit incorporated in the bottom of the frame 1, 4 is a terminal plate attached to the window 2 portion of the frame 1, 5 is a lead from a voice coil, and 6 Is a cone-shaped diaphragm provided in the frame 1, and the structure thereof is well known, and the speaker is constituted by such constituent members.

In the present invention, however, a substantially linear tongue piece 8 is formed in the notch 7 formed by cutting out a part of the inclined portion 1c connecting the bottom portion 1a of the frame 1 and the outer peripheral portion 1b having a larger diameter. It is characterized by what it does. The tongue piece 8 is formed on the inclined portion 1c near the window 2 provided with the terminal board 4, and the cord 9 having one end connected to the terminal board 4 is bent and sewn into a dogleg shape to form the tongue piece 8. It is for hooking and fixing.

That is, FIG. 3 shows an enlarged view of a main part. A part of the inclined portion 1c of the frame 1 is formed with a notch 7 that is cut out in a substantially tooth shape. In this case, the dimension of one side 7a of the cutout 7 is smaller than the dimension of the other side 7b on the opposite side, so that the side edge 7c has a tapered shape, and the central portion of the one side 7a faces the other side 7b. An elongated tongue piece 8 having a substantially U shape and extending substantially linearly is formed. As shown in FIGS. 1 and 2, the tongue piece 8 is formed from the outer peripheral portion 1b side of the frame 1 toward the bottom portion 1a side, and is formed at the same time when the notch 7 is formed. In this case, it is not necessary to stand up and process the tongue piece 8, so that the manufacturing is easy.

Further, a protrusion 7d that protrudes toward the inside is formed in a substantially central portion of the side edge 7c of the notch 7, and has a step shape. The protrusion 7d is located near the tip of the tongue 8. Therefore, the side portion 7c is a portion of the tapered region from the upper edge of the protrusion 7d to the one side 7a of the notch 7 and the region from the upper edge of the protrusion 7d to the other side 7b on the opposite side. It is formed in two stages of part c.

As shown in FIG. 2, when the cord 9 is hooked on the tongue piece 8, the cord 9 is grasped and the speaker is lifted in the direction A, the magnetic circuit 3 portion is heavy. The dodge 9 bites into the side 7a shown in FIG. 3, but in this case, the width of the long holes formed on both sides of the tongue 8 is sharpened by the side 7c that is tapered so that the cord 9 bites firmly. It is becoming narrower. Further, the edge of one side 7a is formed in an arc shape so as to protect the cord 9. It is preferable to coat the cord 9 with, for example, the tube 9a because the strength of the cord 9 is improved.

In addition, when the force is applied in the direction of pulling out the cord 9 in the direction opposite to the above, the portion b in the interval between the opposing protrusions 7d is suddenly moved by the protrusion 7d to prevent the cord 9 from coming off. It is narrowing. Further, the protrusion 7d is formed when the cord 9 is bent into a dogleg shape from the hole portion having a large area of the notch 7 defined by the portions c and d, and is inserted into the tongue piece 8. In other words, it functions as a shoe wrench so that the cord 9 can be easily inserted by hooking the cord 9 on the protrusion 7d and pushing it upward. Since the hole portion defined by the c portion and the d portion is the cord introducing portion and is wide, the cord 9 can be smoothly inserted when the cord is introduced.

FIG. 4 shows a second embodiment of the present invention. In this example, an arcuate recess 8a is formed in the base of the tongue 8 so that when the cord 9 bites into the base of the tongue 8, it is held by the recess 8a so that it is more difficult to pull out than in the above-described embodiment. It is a thing.

FIG. 5 shows a third embodiment of the present invention. In this embodiment, a substantially semicircular enlarged portion 8b is formed at the tip of the tongue piece 8, and the enlarged portion 8b functions as a stopper for the cord 9. The side piece 7c of the notch 7 is simply tapered and does not have the protrusion as in the first and second embodiments. This is because it is difficult to insert the cord 9 when both the enlarged portion 8b and the protrusion are provided.

[0015]

[Effect of device]

 According to the present invention configured as described above, in the manufacture of the frame 1, only the step of cutting out the notch 7 having the tongue 8 is required, the step of starting the tongue 8 is unnecessary, and the cord 9 is simply The insertion can be prevented only by inserting it in a dogleg shape, and there is no need to insert the raised tongue after inserting the cord as in the conventional method, so manufacturing is easy and mass productivity is excellent, and cost is low. Can be down.

[Brief description of drawings]

FIG. 1 is a rear view of a speaker according to a first embodiment of the present invention.

FIG. 2 is a side view of the same.

FIG. 3 is an enlarged view of a main part of the first embodiment of the present invention.

FIG. 4 is an enlarged view of a main part of a second embodiment of the present invention.

FIG. 5 is an enlarged view of a main part of a third embodiment of the present invention.

FIG. 6 is a rear view of a conventional speaker.

FIG. 7 is an enlarged explanatory view of a conventional example.

[Explanation of symbols]

 1 frame 1a bottom part 1b outer peripheral part 2 window 3 magnetic circuit 4 terminal plate 5 voice coil lead 6 diaphragm 7 notch 7a one side 7b other side 7c side 7d protrusion 8 tongue 8a recess 8b enlarged part 9 code 9a tube

Claims (2)

[Scope of utility model registration request] 1. A cord (1) having a part notched, wherein the notch (7) extends linearly from substantially the center of one side (7a) to the other side (7b) of the cord. A tongue piece (8) for locking and fixing the (9) is formed, and the tip of the tongue piece (8) reaches almost the center of the side of the notch (7) and the notch (7) is formed. The cord fixing structure for the speaker, wherein the side (7c) of () is formed in a taper that widens from one side (7a) to the other side (7b). 2. A tongue piece (8) substantially at the center of the side (7c).
The cord fixing structure for a speaker according to claim 1, wherein a protrusion (7d) protruding toward the side is formed.